Science Buddies
Science Buddies: It's Crowded in Here! A Study of Plant Population Density
Like humans, plants can be negatively affected by overcrowding. Unlike humans, plants cannot get up and move to a new environment or explore how to utilize new resources. This experiment will explore the effects of crowding (population...
Cosmo Learning
Cosmo Learning: Principles of Evolution, Ecology and Behavior
A collection of video lectures introducing beginning biology students to the principles of evolution, ecology, and behavior. The course was taught three times a week for a semester at Yale University. The course discusses concepts of...
Oswego City School District
Regents Prep: Ecosystems/communities
Abiotic factors vary in the environment and determining the types and numbers of organisms that exist in that environment. Factors which determine the types and numbers of organisms of a species in an ecosystem are called limiting...